cgcc and REAL_CC help

cgcc and REAL_CC help

[rubisher]

Hello all,

May be can I ask you some more help.

I trying to sparse a bit grub2 code but at some moment make call a sript wich failled with following error:
genkernsyms.sh: line 23: REAL_CC=gcc-4.4: command not found

this shell script is:
### The configure script will replace these variables.

: ${srcdir=/Sources/jso/Deb.grub2/exp-wrk1}
: ${CC=REAL_CC=gcc-4.4 /usr/bin/cgcc}

u=
grep "^#define HAVE_ASM_USCORE" config.h >/dev/null 2>&1 && u="_"

$CC -O0 -DGRUB_MACHINE_IEEE1275=1 -m32 -fno-stack-protector -Wbitwise -Wnon-pointer-null -DGRUB_SYMBOL_GENERATOR=1 -E -I. 
-Iinclude
-I"$srcdir/include" $* \
   | grep -v '^#' \
   | sed -n \
         -e '/EXPORT_FUNC *([a-zA-Z0-9_]*)/{s/.*EXPORT_FUNC *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
         -e '/EXPORT_VAR *([a-zA-Z0-9_]*)/{s/.*EXPORT_VAR *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
   | sort -u

Any idea how should I fix it?

Tia,
	J.

PS: I am runing a debian unstable with bash 4.0-7 dpkg as shell.

Re: cgcc and REAL_CC help

[Bert Wesarg]

On Thu, Dec 17, 2009 at 10:15, rubisher <rubisher@scarlet.be> wrote:
> Hello all,
>
> May be can I ask you some more help.
>
> I trying to sparse a bit grub2 code but at some moment make call a sript
> wich failled with following error:
> genkernsyms.sh: line 23: REAL_CC=gcc-4.4: command not found
>
> this shell script is:
> ### The configure script will replace these variables.
>
> : ${srcdir=/Sources/jso/Deb.grub2/exp-wrk1}
> : ${CC=REAL_CC=gcc-4.4 /usr/bin/cgcc}
Try:

    export REAL_CC=gcc-4.4
    : ${CC=/usr/bin/cgcc}

Or use eval or the $CC command below.

>
> u=
> grep "^#define HAVE_ASM_USCORE" config.h >/dev/null 2>&1 && u="_"
>
> $CC -O0 -DGRUB_MACHINE_IEEE1275=1 -m32 -fno-stack-protector -Wbitwise
> -Wnon-pointer-null -DGRUB_SYMBOL_GENERATOR=1 -E -I. -Iinclude
> -I"$srcdir/include" $* \
>  | grep -v '^#' \
>  | sed -n \
>        -e '/EXPORT_FUNC *([a-zA-Z0-9_]*)/{s/.*EXPORT_FUNC
> *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
>        -e '/EXPORT_VAR *([a-zA-Z0-9_]*)/{s/.*EXPORT_VAR
> *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
>  | sort -u
>
> Any idea how should I fix it?
>
> Tia,
>        J.
>
> PS: I am runing a debian unstable with bash 4.0-7 dpkg as shell.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sparse" in
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Re: cgcc and REAL_CC help

[rubisher]

Bert Wesarg wrote:
> On Thu, Dec 17, 2009 at 10:15, rubisher <rubisher@scarlet.be> wrote:
>> Hello all,
>>
>> May be can I ask you some more help.
>>
>> I trying to sparse a bit grub2 code but at some moment make call a sript
>> wich failled with following error:
>> genkernsyms.sh: line 23: REAL_CC=gcc-4.4: command not found
>>
>> this shell script is:
>> ### The configure script will replace these variables.
>>
>> : ${srcdir=/Sources/jso/Deb.grub2/exp-wrk1}
>> : ${CC=REAL_CC=gcc-4.4 /usr/bin/cgcc}
> Try:
> 
>     export REAL_CC=gcc-4.4
>     : ${CC=/usr/bin/cgcc}
> 
Tx that's egnough.

> Or use eval or the $CC command below.
> 
>> u=
>> grep "^#define HAVE_ASM_USCORE" config.h >/dev/null 2>&1 && u="_"
>>
>> $CC -O0 -DGRUB_MACHINE_IEEE1275=1 -m32 -fno-stack-protector -Wbitwise
>> -Wnon-pointer-null -DGRUB_SYMBOL_GENERATOR=1 -E -I. -Iinclude
>> -I"$srcdir/include" $* \

That said, my next issue is that "-E" which is disable by cgcc:
[snip]
     # If someone adds "-E", don't pre-process twice.
     $do_compile = 0 if $_ eq '-E';
[snip]

If ever some of you knows why, I would be interested in?

Tx again,
	J.

>>  | grep -v '^#' \
>>  | sed -n \
>>        -e '/EXPORT_FUNC *([a-zA-Z0-9_]*)/{s/.*EXPORT_FUNC
>> *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
>>        -e '/EXPORT_VAR *([a-zA-Z0-9_]*)/{s/.*EXPORT_VAR
>> *(\([a-zA-Z0-9_]*\)).*/'"$u"'\1 kernel/;p;}' \
>>  | sort -u
>>
>> Any idea how should I fix it?
>>
>> Tia,
>>        J.
>>
>> PS: I am runing a debian unstable with bash 4.0-7 dpkg as shell.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-sparse" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
> 

Re: cgcc and REAL_CC help

[Chris Li]

On Fri, Dec 18, 2009 at 9:14 AM, rubisher <rubisher@scarlet.be> wrote:
> That said, my next issue is that "-E" which is disable by cgcc:
> [snip]
>    # If someone adds "-E", don't pre-process twice.
>    $do_compile = 0 if $_ eq '-E';
> [snip]
>
> If ever some of you knows why, I would be interested in?

My guess is that, both gcc and sparse pre-process print to stdout.
So allow them both pre-process will mess up the result.

The current cgcc chose to let sparse do the pre-process and don't
run the real cc. You can make the gcc does the real pro-process and
sparse just check though.

Chris
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Re: cgcc and REAL_CC help

[rubisher]

Hello Chris,

Chris Li wrote:
> On Fri, Dec 18, 2009 at 9:14 AM, rubisher <rubisher@scarlet.be> wrote:
>> That said, my next issue is that "-E" which is disable by cgcc:
>> [snip]
>>    # If someone adds "-E", don't pre-process twice.
>>    $do_compile = 0 if $_ eq '-E';
>> [snip]
>>
>> If ever some of you knows why, I would be interested in?
> 
> My guess is that, both gcc and sparse pre-process print to stdout.
> So allow them both pre-process will mess up the result.
> 
That was also my guess but when I comment out this line and run the same script one time with 'REAL_CC=gcc-4.4 cgcc' and the
second time with 'gcc-4.4' the results are the same, thought?

> The current cgcc chose to let sparse do the pre-process and don't
> run the real cc. You can make the gcc does the real pro-process and
> sparse just check though.
> 
Yes I think that I would have to do more effort to sparse this code.

Tx,
	J.

> Chris
>